Nucleosynthesis by accelerated particles to account for the surface composition of HD 101065

Abstract

Context. Recent observations have suggested the presence of radioactive elements, such as Tc, Pm, and 84 99 elements at the surface of the chemically-peculiar magnetic star HD 101065, also known as Przybylski's star. The peculiar abundance pattern of HD 101065 has been explained so far by diffusion processes in the stellar envelope. However, those processes cannot be called on to explain the origin of short-lived radioelements.